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DrugPatentWatch Database Preview

Details for Patent: 7,256,310

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Patent 7,256,310 protects XOPENEX HFA and is included in one NDA.

This patent has twenty-seven patent family members in eighteen countries.

Summary for Patent: 7,256,310

Title:Levalbuterol salt
Abstract:Levalbuterol L-tartrate affords crystals possessing properties desirable for use in a metered dose inhaler.
Inventor(s): McGlynn; Paul (Marlborough, MA), Bakale; Roger (Shrewsbury, MA), Sturge; Craig (Falmouth, CA)
Assignee: Sepracor Inc. (Marlborough, MA)
Application Number:10/728,873
Patent Claim Types:
see list of patent claims
Composition; Formulation; Delivery; Device; Process; Use;
Patent Metrics:
Source: PatentQuant.com
Field: Organic fine chemistry
Back Citations: 10th percentile
Forward Citations: 0th percentile

Applicant Tradename Generic Name Dosage NDA Approval Date Type RLD Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use
Sunovion
XOPENEX HFA
levalbuterol tartrate
AEROSOL, METERED;INHALATION021730-001Mar 11, 2005RXYes7,256,310► subscribeYY TREATMENT OR PREVENTION OF BRONCHOSPASM OR ASTHMATIC SYMPTOMS
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Non-Orange Book Patents for Patent: 7,256,310

For Orange Book-listed patents (shown in the main table above) generic applications must certify that the listed patents are expired, invalid, or will not be infringed by generic entry.

The non-Orange Book patents listed below do not require formal certifications, so they do not automatically impede generic entry. Instead, they represent potential opportunities for branded firms to block generic entry through patent infringment challenges.

Patent No. Title Estimated Patent Expiration
8,765,153Levalbuterol salt► subscribe
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Because of the complexity of determining patent expiration dates it is advisable to have patent counsel verify freedom to operate.

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International Patent Family for Patent: 7,256,310

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Slovenia1671942► subscribe
Slovenia1572622► subscribe
Portugal1671942► subscribe
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Due to the complexity of determining patent expirations even in a single country, compounded by the diversity of global patent laws, it is advisable to have patent counsel verify freedom to operate.

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